(This is not an exhaustive list. It is a list of possibilities, not of advice. Many combinations of these have been used with various degrees of success in the past, and many of the items listed have huge drawbacks. In no particular order: )

100 Ways to Get Rich

Get what you want by force
Use technology to leverage force
Use technology to save money
Use technology to save time
Get political power
Get corporate power
Have a great career
Forget about having a career
Give bribes
Accept bribes
Make laws in your favor
Change laws in your favor
Get government subsidy
Get bailout money (new!)
Avoid taxes
Spend the money of others
Spend the taxpayers' money
Leverage the money of others
Control things
Control the financial system
Control people
Control nations
Control laws of nature (good luck!)